Each sub had a small amount of silicon put on the surround when the drill slipped on two separate occasions. One sub has only been owned by me since Aug of 2008. The other sub was bought from sound_around last month. He also placed a dab of CA glue on the surround. Performance not affeced at all.

Price:
$230 plus shipping for my original
$200 plus shipping for the one bought from sound_around (realized i bought it $30 cheaper than I thought)